Engines and Components› Pistons and Piston Rings

United Engine & Machine Co

CHEVROLET 489 (V8) ROD 6.385 HOLLOW DOME .650 43CC 1V ICON PREMIUM FORGED PISTON SET

$125.59

SKU: U00B IC603.040

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Description

The United Engine & Machine Co IC603.040 is a set of forged pistons designed for Chevrolet Big Block Mark IV V8 engines. These pistons are forged from a premium high ductility alloy and feature a .650-inch hollow dome with a 43cc volume. With a bore of 4.290 inches, a stroke of 4.250 inches, and a 6.385-inch rod length, they are engineered for performance applications.

Each piston weighs 608 grams and has a compression height of 1.270 inches. The V-rib design enhances strength and cooling.

Fitment

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Specifications

BrandUnited Engine & Machine Co
Part NumberU00B IC603.040

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Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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